Middle Fork Interbay is a concrete gravity dam located in Auburn, California, on the Middle Fork American River. Built in 1966 for irrigation purposes, the dam stands at a height of 70 feet and has a storage capacity of 155 acre-feet. With a controlled spillway width of 140 feet, the dam is designed to handle a maximum discharge of 37,400 cubic feet per second.

Managed by the Federal Energy Regulatory Commission, Middle Fork Interbay is regulated by the Department of Water Resources for dam safety. Despite being classified as having a low hazard potential, the dam is considered to have a very high risk due to its age and the surrounding environmental factors. The dam's emergency action plan was last revised in January 2021, and regular inspections ensure its structural integrity and safety.

Water resource and climate enthusiasts will be intrigued by the intricate design and engineering of Middle Fork Interbay, as well as its crucial role in providing irrigation, hydroelectric power, and water supply to the surrounding area. The dam's location in Placer County, California, amidst a picturesque landscape, adds to its significance in managing water resources and adapting to changing climate conditions.